Method for transmitting uplink sounding reference signal for LTE system
AssigneeSamsung Electronics Co., Ltd.
InventorsHong He, Yingyang Li
Life of this patent
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Abstract
Disclosed are a method and apparatus for transmitting an uplink Sounding Reference Signal (SRS), the method including identifying a number of downlink and uplink switch points within a radio frame Nsp and a system frame number nf, calculating a value of nSRS according to a number of downlink and uplink switch points within a radio frame Nsp, and the system frame number nf for transmitting the SRS, determining a frequency-domain starting position of the SRS with nSRS, and transmitting the SRS at the determined frequency-domain starting position.
Claims28
A method for transmitting an uplink Sounding Reference Signal (SRS), the method comprising steps of:
- a) identifying a number of downlink and uplink switch points within a radio frame, Nsp, and a system frame number nf;
- b) calculating a value of nSRS according to the number of downlink and uplink switch points within a radio frame Nsp, and the system frame number nf for transmitting the SRS;
- c) determining a frequency-domain starting position of the SRS based on nSRS;
- and
- d) transmitting the SRS at the determined frequency-domain starting position.
A User Equipment (UE) for transmitting an uplink Sounding Reference Signal (SRS) comprising:
- an SRS sequence generator for generating an SRS sequence;
- a physical resource mapper for transmitting the SRS;
- and
- a transmitter for transmitting the SRS at a determined frequency-domain starting position,
- wherein the physical resource mapper is adapted to perform the following sequence of steps:
- a) identifying a number of downlink and uplink switch points within a radio frame, Nsp, and a system frame number nf;
- b) calculating a value of nSRS according to the number of downlink and uplink switch points within a radio frame Nsp, and the system frame number nf for transmitting the SRS;
- and
- c) determining a frequency-domain starting position of the SRS based on nSRS.
A method for receiving an uplink Sounding Reference Signal (SRS), the method comprising steps of:
- a) identifying a number of downlink and uplink switch points within a radio frame, Nsp, and a system frame number nf;
- b) calculating a value of nSRS according to the number of downlink and uplink switch points within a radio frame Nsp, and the system frame number nf for transmitting the SRS;
- c) determining a frequency-domain starting position of the SRS based on nSRS;
- and
- d) receiving the SRS at the determined frequency-domain starting position.
A base station for receiving an uplink Sounding Reference Signal (SRS), the base station comprising:
- an SRS sequence generator for generating an SRS sequence;
- a physical resource mapper for transmitting the SRS;
- and
- a receiver for receiving the SRS at a determined frequency-domain starting position,
- wherein the physical resource mapper is adapted to sequentially perform steps of:
- a) identifying a number of downlink and uplink switch points within a radio frame, Nsp, and a system frame number nf;
- b) calculating a value of nSRS according to the number of downlink and uplink switch points within a radio frame Nsp, and the system frame number nf for transmitting the SRS;
- and
- c) determining a frequency-domain starting position of the SRS based on nSRS.
Dependencies are inferred from the claim text.